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Can H, Chanumolu SK, Nielsen BD, Alvarez S, Naldrett MJ, Ünlü G, Otu HH. Integration of Meta-Multi-Omics Data Using Probabilistic Graphs and External Knowledge. Cells 2023; 12:1998. [PMID: 37566077 PMCID: PMC10417344 DOI: 10.3390/cells12151998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/11/2023] [Accepted: 08/02/2023] [Indexed: 08/12/2023] Open
Abstract
Multi-omics has the promise to provide a detailed molecular picture of biological systems. Although obtaining multi-omics data is relatively easy, methods that analyze such data have been lagging. In this paper, we present an algorithm that uses probabilistic graph representations and external knowledge to perform optimal structure learning and deduce a multifarious interaction network for multi-omics data from a bacterial community. Kefir grain, a microbial community that ferments milk and creates kefir, represents a self-renewing, stable, natural microbial community. Kefir has been shown to have a wide range of health benefits. We obtained a controlled bacterial community using the two most abundant and well-studied species in kefir grains: Lentilactobacillus kefiri and Lactobacillus kefiranofaciens. We applied growth temperatures of 30 °C and 37 °C and obtained transcriptomic, metabolomic, and proteomic data for the same 20 samples (10 samples per temperature). We obtained a multi-omics interaction network, which generated insights that would not have been possible with single-omics analysis. We identified interactions among transcripts, proteins, and metabolites, suggesting active toxin/antitoxin systems. We also observed multifarious interactions that involved the shikimate pathway. These observations helped explain bacterial adaptation to different stress conditions, co-aggregation, and increased activation of L. kefiranofaciens at 37 °C.
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Affiliation(s)
- Handan Can
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Sree K. Chanumolu
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Barbara D. Nielsen
- Department of Animal, Veterinary and Food Sciences, University of Idaho, Moscow, ID 83844, USA
| | - Sophie Alvarez
- Proteomics and Metabolomics Facility, Nebraska Center for Biotechnology, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Michael J. Naldrett
- Proteomics and Metabolomics Facility, Nebraska Center for Biotechnology, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Gülhan Ünlü
- Department of Animal, Veterinary and Food Sciences, University of Idaho, Moscow, ID 83844, USA
- Department of Chemical and Biological Engineering, University of Idaho, Moscow, ID 83844, USA
- School of Food Science, Washington State University, Pullman, WA 99164, USA
| | - Hasan H. Otu
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
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Karakaş S, Erdoğan Bakar E, Doğutepe E, Can H, Kaskatı T. Differentiation of memory processing stages and effect of demographic variables with alternative scoring approaches to the Rey auditory verbal learning test. J Clin Exp Neuropsychol 2022; 44:109-133. [PMID: 35670663 DOI: 10.1080/13803395.2022.2080186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND The Rey Auditory Verbal Learning Test (RAVLT) is the third most popular verbal memory test and the tenth most frequently used neuropsychological test. The original scoring system of RAVLT does not differentiate stages of memory processing, but a recently developed composite scoring system has this potential. The objectives were to compare the two systems in terms of their capacity to differentiate the stages of memory processing and to study the effect of demographic variables on the learning trials (T) of the Turkish form of RAVLT (T-RAVLT). METHOD The sample consisted of 600 Caucasian Turkic adults, who were categorized into three levels of age, three levels of education, and two levels of gender. Individual administration of T-RAVLT was performed using the standard procedures of RAVLT. RESULTS The components in the exploratory factor analysis (EFA) and latent variables in the confirmatory factor analysis (CFA) of the original scores were consistent with sequentially ordered T-RAVLT stages. Demographic variables (age, education, and gender) affected performances in all of the learning trials. The composite scores revealed retrieval and retention as separate components, but these scores could not be predicted from the relevant T-RAVLT scores. CONCLUSIONS Findings recommend a combined utilization of the two scoring systems: The original system to provide scores on the performance at each stage of T-RAVLT and the combined system to provide separate scores on learning, retention, and retrieval, the three stages of memory processing. A selective effect of demographic variables on T1 was not observed, indicating a need for cross-cultural studies that are meticulously controlled for age and education.
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Affiliation(s)
- Sirel Karakaş
- Department of Psychology, Doğuş University, Istanbul, Turkey.,Neurometrika Medical Technologies Research and Development Limited Liability Company, Neurometrika Medical Technologies R&D LLC, Ankara, Turkey
| | | | - Elvin Doğutepe
- Department of Psychology, Başkent University, Ankara, Turkey
| | - Handan Can
- Department of Psychology, Uludağ University, Bursa, Turkey
| | - Tolga Kaskatı
- BYS Group Research and Development Limited Liability Company, BYS Group, Ankara, Turkey
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Duman F, Can H, Leventoğlu A. Evaluation of Short-Term Memory, Working Memory, and Executive Functions in Patients with Relapsing Remitting Multiple Sclerosis. tnd 2022. [DOI: 10.4274/tnd.2022.24992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Karakavuk M, Can H, Döşkaya M, Karakavuk T, Erkunt-Alak S, Köseoğlu AE, Gül A, Ün C, Gürüz Y, Değirmenci-Döşkaya A. Cryptosporidiosis outbreak on a dairy farm: Detection of Cryptosporidium parvum as a causative agent in the water source. Pol J Vet Sci 2021; 24:323-333. [PMID: 34730310 DOI: 10.24425/pjvs.2021.137669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Diarrhea caused by parasitic agents is common in neonatal calves and leads to significant economic losses in cattle farms worldwide. Cryptosporidium spp. is one of the most frequently detected parasitic agents causing diarrhea in neonatal calves. The aim of this study was to investigate the presence of Cryptosporidium spp. on a dairy farm which a has major diarrhea problem. Samples were collected from calves, cows, drinking bowls, and two different artesian water sources, as well as from the environment. All fecal samples were investigated using Kinyoun acid-fast stained slides and real-time PCR targeting the Cryptosporidium spp. COWP gene. In addition, species identification was performed by nested PCR targeting the Cryptosporidium spp. COWP gene and sequencing. Cryptosporidium spp. was detected in 11 calves (30.55%; 11/36) by real-time PCR and the cows were negative. Among real-time PCR positive samples, only five were also found positive by microscopy. Moreover, Cryptosporidium spp. was found in one of the two artesian water sources and five environmental samples by real-time PCR. Among these positive samples, eight were sequenced. According to the RFLP pattern, BLAST and, phylogenetic analyses, all sequenced samples were Cryptosporidium parvum. These findings show the importance of C. parvum as a cause of calf diarrhea on dairy farms.
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Affiliation(s)
- M Karakavuk
- Ege University Faculty of Medicine, Department of Parasitology, Bornova, İzmir, Turkey.,Ege University, Ödemiş Vocational School, Veterinary technology programs, Ödemiş, Izmir, Turkey
| | - H Can
- Ege University Faculty of Science, Department of Biology, Molecular Biology Section, Bornova, İzmir, Turkey
| | - M Döşkaya
- Ege University Faculty of Medicine, Department of Parasitology, Bornova, İzmir, Turkey
| | - T Karakavuk
- Ege University Faculty of Medicine, Department of Parasitology, Bornova, İzmir, Turkey
| | - S Erkunt-Alak
- Ege University Faculty of Science, Department of Biology, Molecular Biology Section, Bornova, İzmir, Turkey
| | - A E Köseoğlu
- Ege University Faculty of Science, Department of Biology, Molecular Biology Section, Bornova, İzmir, Turkey
| | - A Gül
- Ege University Faculty of Engineering, Department of Bioengineering, Bornova, İzmir, Turkey
| | - C Ün
- Ege University Faculty of Science, Department of Biology, Molecular Biology Section, Bornova, İzmir, Turkey
| | - Y Gürüz
- Ege University Faculty of Medicine, Department of Parasitology, Bornova, İzmir, Turkey
| | - A Değirmenci-Döşkaya
- Ege University Faculty of Medicine, Department of Parasitology, Bornova, İzmir, Turkey
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Abstract
The Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway database provides a manual curation of biological pathways that involve genes (or gene products), metabolites, chemical compounds, maps, and other entries. However, most applications and datasets involved in omics are gene or protein-centric requiring pathway representations that include direct and indirect interactions only between genes. Furthermore, special methodologies, such as Bayesian networks require acyclic representations of graphs. We developed KEGG2Net, a web resource that generates a network involving only the genes represented on a KEGG pathway with all of the direct and indirect gene-gene interactions deduced from the pathway. KEGG2Net offers four different methods to remove cycles from the resulting gene interaction network, converting them into directed acyclic graphs (DAGs). We generated synthetic gene expression data using the gene interaction networks deduced from the KEGG pathways and performed a comparative analysis of different cycle removal methods by testing the fitness of their DAGs to the data and by the number of edges they eliminate. Our results indicate that an ensemble method for cycle removal performs as the best approach to convert the gene interaction networks into DAGs. Resulting gene interaction networks and DAGs are represented in multiple user-friendly formats that can be used in other applications, and as images for quick and easy visualisation. The KEGG2Net web portal converts KEGG maps for any organism into gene-gene interaction networks and corresponding DAGS representing all of the direct and indirect interactions among the genes.
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Affiliation(s)
- Sree K Chanumolu
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Mustafa Albahrani
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Handan Can
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Hasan H Otu
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE, United States
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Can H, Chanumolu SK, Gonzalez-Muñoz E, Prukudom S, Otu HH, Cibelli JB. Comparative analysis of single-cell transcriptomics in human and Zebrafish oocytes. BMC Genomics 2020; 21:471. [PMID: 32640983 PMCID: PMC7346435 DOI: 10.1186/s12864-020-06860-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/22/2020] [Indexed: 02/07/2023] Open
Abstract
Background Zebrafish is a popular model organism, which is widely used in developmental biology research. Despite its general use, the direct comparison of the zebrafish and human oocyte transcriptomes has not been well studied. It is significant to see if the similarity observed between the two organisms at the gene sequence level is also observed at the expression level in key cell types such as the oocyte. Results We performed single-cell RNA-seq of the zebrafish oocyte and compared it with two studies that have performed single-cell RNA-seq of the human oocyte. We carried out a comparative analysis of genes expressed in the oocyte and genes highly expressed in the oocyte across the three studies. Overall, we found high consistency between the human studies and high concordance in expression for the orthologous genes in the two organisms. According to the Ensembl database, about 60% of the human protein coding genes are orthologous to the zebrafish genes. Our results showed that a higher percentage of the genes that are highly expressed in both organisms show orthology compared to the lower expressed genes. Systems biology analysis of the genes highly expressed in the three studies showed significant overlap of the enriched pathways and GO terms. Moreover, orthologous genes that are commonly overexpressed in both organisms were involved in biological mechanisms that are functionally essential to the oocyte. Conclusions Orthologous genes are concurrently highly expressed in the oocytes of the two organisms and these genes belong to similar functional categories. Our results provide evidence that zebrafish could serve as a valid model organism to study the oocyte with direct implications in human.
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Affiliation(s)
- Handan Can
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Sree K Chanumolu
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Elena Gonzalez-Muñoz
- LARCEL, Andalusian Laboratory of Cell Reprogramming (LARCel), Andalusian Center for Nanomedicine and Biotechnology-BIONAND, 29590, Málaga, Spain.,Department of Cell Biology, Genetics and Physiology, University of Málaga and; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, (CIBER-BBNE), 29071, Málaga, Spain
| | - Sukumal Prukudom
- Department of Anatomy, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, 10900, Thailand
| | - Hasan H Otu
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA.
| | - Jose B Cibelli
- Departments of Animal Science and Large Animal Clinical Sciences, Michigan State University, East Lansing, MI, 48824, USA.
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Bülbül Y, Ozlu T, Arinc S, Ozyurek B, Gunbatar H, Senturk A, Bahadir A, Ozcelik M, Yilmaz U, Akbay M, Saglam L, Kilic T, Kirkil G, Ozcelik N, Tatar D, Baris S, Yavsan D, Sen H, Berk S, Acat M, Cakmak G, Yumuk P, Intepe Y, Toru U, Ayik S, Basyigit I, Ozkurt S, Mutlu L, Yasar Z, Esme H, Erol M, Oruc O, Erdoğan Y, Asker S, Ulas A, Erol S, Kerget B, Erbaycu A, Teke T, Beşiroğlu M, Can H, Dalli A, Talay F. Assessment of Palliative Care in Lung Cancer in Turkey. Med Princ Pract 2017; 26:50-56. [PMID: 27780164 PMCID: PMC5588338 DOI: 10.1159/000452801] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 10/24/2016] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE To investigate the symptoms of lung cancer in Turkey and to evaluate approaches to alleviate these symptoms. SUBJECTS AND METHODS This study included 1,245 lung cancer patients from 26 centers in Turkey. Demographic characteristics as well as information regarding the disease and treatments were obtained from medical records and patient interviews. Symptoms were evaluated using the Edmonton Symptom Assessment Scale (ESAS) and were graded on a scale between 0 and 10 points. Data were compared using the χ2, Student t, and Mann-Whitney U tests. Potential predictors of symptoms were analyzed using logistic regression analysis. RESULTS The most common symptom was tiredness (n = 1,002; 82.1%), followed by dyspnea (n = 845; 69.3%), appetite loss (n = 801; 65.7%), pain (n = 798; 65.4%), drowsiness (n = 742; 60.8%), anxiety (n = 704; 57.7%), depression (n = 623; 51.1%), and nausea (n = 557; 45.5%). Of the 1,245 patients, 590 (48.4%) had difficulty in initiating or maintaining sleep. The symptoms were more severe in stages III and IV. Logistic regression analysis indicated a clear association between demographic characteristics and symptom distress, as well as between symptom distress (except nausea) and well-being. Overall, 804 (65.4%) patients used analgesics, 630 (51.5%) received treatment for dyspnea, 242 (19.8%) used enteral/parenteral nutrition, 132 (10.8%) used appetite stimulants, and 129 (10.6%) used anxiolytics/antidepressants. Of the 799 patients who received analgesics, 173 (21.7%) reported that their symptoms were under control, and also those on other various treatment modalities (dyspnea: 78/627 [12.4%], appetite stimulant: 25/132 [18.9%], and anxiolytics/antidepressants: 25/129 [19.4%]) reported that their symptoms were controlled. CONCLUSION In this study, the symptoms progressed and became more severe in the advanced stages of lung cancer, and palliative treatment was insufficient in most of the patients in Turkey.
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Affiliation(s)
- Y. Bülbül
- Department of Chest Diseases, School of Medicine, Karadeniz Technical University, Trabzon, Izmir, Turkey
| | - T. Ozlu
- Department of Chest Diseases, School of Medicine, Karadeniz Technical University, Trabzon, Izmir, Turkey
| | - S. Arinc
- Department of Chest Diseases, School of Medicine, Sureyyapasa, Istanbul, Turkey
| | - B.A. Ozyurek
- Department of Chest Diseases, School of Medicine, Ataturk, Ankara, Turkey
| | - H. Gunbatar
- Department of Chest Diseases, School of Medicine, Yuzuncu Yil University, Van, Turkey
| | - A. Senturk
- Department of Chest Diseases, School of Medicine, Ataturk, Ankara
| | - A. Bahadir
- Department of Chest Diseases, School of Medicine, Yedikule, Istanbul, Turkey
| | - M. Ozcelik
- Department of Chest Diseases, School of Medicine, Kartal, Istanbul
| | - U. Yilmaz
- Department of Chest Diseases, School of Medicine, Dr. Suat Seren, Izmir, Education and Research Hospitals of, Izmir, Turkey
- *Prof. Yilmaz Bülbül, Department of Chest Diseases, School of Medicine, Karadeniz Technical University, Farabi Cd. No: 66, TR–61080 Trabzon (Turkey), E-Mail
| | - M.O. Akbay
- Department of Chest Diseases, School of Medicine, Sureyyapasa, Istanbul, Turkey
| | - L. Saglam
- Department of Chest Diseases, School of Medicine, Ataturk University, Erzurum, Turkey
| | - T. Kilic
- Department of Chest Diseases, School of Medicine, Inonu University, Malatya, Turkey
| | - G. Kirkil
- Department of Chest Diseases, School of Medicine, Firat University, Elazıg, Turkey
| | - N. Ozcelik
- Department of Chest Diseases, School of Medicine, Karadeniz Technical University, Trabzon, Izmir, Turkey
| | - D. Tatar
- Department of Chest Diseases, School of Medicine, Dr. Suat Seren, Izmir, Education and Research Hospitals of, Izmir, Turkey
| | - S.A. Baris
- Department of Chest Diseases, School of Medicine, Kocaeli University, Kocaeli, Turkey
| | - D.M. Yavsan
- Department of Chest Diseases, School of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - H.S. Sen
- Department of Chest Diseases, School of Medicine, Dicle University, Diyarbakir, Turkey
| | - S. Berk
- Department of Chest Diseases, School of Medicine, Cumhuriyet University, Sivas, Turkey
| | - M. Acat
- Department of Chest Diseases, School of Medicine, Karabük University, Karabük, Turkey
| | - G. Cakmak
- Department of Chest Diseases, School of Medicine, Haseki, Istanbul
| | - P.F. Yumuk
- Department of Chest Diseases, School of Medicine, Department of Medical Oncology School of Medicine, Marmara University, Istanbul, Izmir, Turkey
| | - Y.S. Intepe
- Department of Chest Diseases, School of Medicine, Bozok University, Yozgat, Turkey
| | - U. Toru
- Department of Chest Diseases, School of Medicine, Dumlupinar University, Kutahya, Turkey
| | - S.O. Ayik
- Department of Chest Diseases, School of Medicine, Katip Celebi University, Izmir, Turkey
| | - I. Basyigit
- Department of Chest Diseases, School of Medicine, Kocaeli University, Kocaeli, Turkey
| | - S. Ozkurt
- Department of Chest Diseases, School of Medicine, Pamukkale University, Denizli, Turkey
| | - L.C. Mutlu
- Department of Chest Diseases, School of Medicine, Namik Kemal University, Tekirdag, Turkey
| | - Z.A. Yasar
- Department of Chest Diseases, School of Medicine, Abant Izzet Baysal University, Bolu, Pulmonary Diseases and Thoracic Surgery Education and Research Hospitals of, Izmir, Turkey
| | - H. Esme
- Department of Chest Diseases, School of Medicine, Konya, Konya
| | - M.M. Erol
- Department of Chest Diseases, School of Medicine, Department of Thoracic Surgery School of Medicine, Uludag University, Bursa, Turkey
| | - O. Oruc
- Department of Chest Diseases, School of Medicine, Sureyyapasa, Istanbul, Turkey
| | - Y. Erdoğan
- Department of Chest Diseases, School of Medicine, Ataturk, Ankara, Turkey
| | - S. Asker
- Department of Chest Diseases, School of Medicine, Yuzuncu Yil University, Van, Turkey
| | - A. Ulas
- Department of Chest Diseases, School of Medicine, Ataturk, Ankara
| | - S. Erol
- Department of Chest Diseases, School of Medicine, Dr. Suat Seren, Izmir, Education and Research Hospitals of, Izmir, Turkey
| | - B. Kerget
- Department of Chest Diseases, School of Medicine, Ataturk University, Erzurum, Turkey
| | - A.E. Erbaycu
- Department of Chest Diseases, School of Medicine, Dr. Suat Seren, Izmir, Education and Research Hospitals of, Izmir, Turkey
| | - T. Teke
- Department of Chest Diseases, School of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - M. Beşiroğlu
- Department of Chest Diseases, School of Medicine, Department of Medical Oncology School of Medicine, Marmara University, Istanbul, Izmir, Turkey
| | - H. Can
- Department of Chest Diseases, School of Medicine, Department of Family Medicine School of Medicine, Katip Celebi University, Izmir, Turkey
| | - A. Dalli
- Department of Chest Diseases, School of Medicine, Katip Celebi University, Izmir, Turkey
| | - F. Talay
- Department of Chest Diseases, School of Medicine, Abant Izzet Baysal University, Bolu, Pulmonary Diseases and Thoracic Surgery Education and Research Hospitals of, Izmir, Turkey
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Can H, Doğutepe E, Torun Yazıhan N, Korkman H, Erdoğan Bakar E. Construct Validity of Auditory Verbal Learning Test. Turk Psikiyatri Derg 2016; 27:195-203. [PMID: 27711940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE Auditory Verbal Learning Test (AVLT) is frequently used in neuropsychology literature to comprehensively assess the memory. The test measures verbal learning as immediate and delayed free recall, recognition, and retroactive and proactive interference. Adaptation of AVLT to the Turkish society has been completed, whereas research and development studies are still underway. The purpose of the present study is to investigate the construct validity of the test in order to contribute to the research and development process. METHOD In line with this purpose, the research data were obtained from 78 healthy participants aged between 20 and 69. The exclusion criteria included neurological and/or psychiatric disorders as well as untreated auditory/visual disorders. AVLT was administered to participants individually by two trained psychologists. RESULTS Principal component analysis that is used to investigate the components represented by the AVLT scores consisted of learning, free recall and recognition, in line with the construct of the test. Distractors were also added to these two components in structural equation model. Analyses were carried out on descriptive level to establish the relatioships between age, education, gender and AVLT scores. CONCLUSION These findings, which are consistent with the literature indicating that memory is affected by the developmental process, suggest that learning/free recall, recognition, and distractor scores of the AVLT demonstrate a component pattern consistent with theoretical knowledge. This conclusion suggests that AVLT is a valid measurement test for the Turkish society.
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Türkeş N, Can H, Kurt M, Elmastaş Dikeç B. [A Study to Determine the Norms for the Trail Making Test For the Age Range of 20-49 in Turkey]. Turk Psikiyatri Derg 2015; 26:189-196. [PMID: 26364173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE The main goal of the study is to determine the normative values of Trail Making Test (TMT) for people between 20-49 years of age; to examine the effect of age, education and sex variables over TMT scores and identify the reliability coefficient of the test. METHOD The sample of the study consisted of 133 women and 130 men, 261 voluntary and healthy participants in total. The data of the research was collected according to 3 x 2 x 2 factorial experimental design; and the participants were distributed to experimental conditions well balanced in terms of the levels of age, education and sex. TMT A and B form, and Beck Depression Scale (BDS) were applied for the assessment. RESULTS Seven scores were calculated determining for Turkish normative values; 3 x 2 x 2 factorial multivariate variance analysis was applied in order to identify the effect of levels of age, education and sex over TMT scores. According to the results of the analyses, it was found that main effect of education was significant, while the main effects of age and sex variables were not (p<.05). The test-retest reliability coefficients of the TMT changed between .71 and .87. CONCLUSION This study indicated that especially the TMT B and subtest scores were affected by the education in the range of 20-49 years of age. Additionally, normative values depending on the means of TMT scores for 20-49 age group were obtained in the study; it was shown that TMT was a reliable assessment tool.
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Can H, Dogutepe Dincer E, Torun Yazihan N, Korkman H, Erdogan Bakar E. CONSTRUCT VALIDITY OF AUDITORY VERBAL LEARNING TEST. Turkish Journal of Psychiatry 2015. [DOI: 10.5080/u8020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Seyhun O, Erdol S, Can H, Erdogan E. A Comparative Analysis on The Reimbursement Status Of Sensor Augmented Pump Therapy in Turkey and Other Selected Countries. Value Health 2014; 17:A358-A359. [PMID: 27200722 DOI: 10.1016/j.jval.2014.08.773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- O Seyhun
- Medtronic, Inc., Istanbul, Turkey
| | - S Erdol
- Medtronic, Inc., Istanbul, Turkey
| | - H Can
- Medtronic, Inc., Istanbul, Turkey
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Seyhun O, Erdol S, Can H, Erdogan E. Transformation of Green Card Program for the Poor: One Step Further to Universal Health Care Coverage in Turkey. Value Health 2014; 17:A411. [PMID: 27201010 DOI: 10.1016/j.jval.2014.08.975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- O Seyhun
- Medtronic, Inc., Istanbul, Turkey
| | - S Erdol
- Medtronic, Inc., Istanbul, Turkey
| | - H Can
- Medtronic, Inc., Istanbul, Turkey
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Seyhun O, Erdogan E, Can H, Erdol S, Guler I, Bayazit A. Product Quality Aspect in Reimbursement of Medical Devices: Comparison of Turkey Verse Europe. Value Health 2014; 17:A430. [PMID: 27201123 DOI: 10.1016/j.jval.2014.08.1090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- O Seyhun
- Medtronic, Inc., Istanbul, Turkey
| | | | - H Can
- Medtronic, Inc., Istanbul, Turkey
| | - S Erdol
- Medtronic, Inc., Istanbul, Turkey
| | - I Guler
- Turkish association of social security experts, Ankara, Turkey
| | - A Bayazit
- Turkish association of social security experts, Ankara, Turkey
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Abstract
Although whole human genome sequencing can be done with readily available technical and financial resources, the need for detailed analyses of genomes of certain populations still exists. Here we present, for the first time, sequencing and analysis of a Turkish human genome. We have performed 35x coverage using paired-end sequencing, where over 95% of sequencing reads are mapped to the reference genome covering more than 99% of the bases. The assembly of unmapped reads rendered 11,654 contigs, 2,168 of which did not reveal any homology to known sequences, resulting in ∼1 Mbp of unmapped sequence. Single nucleotide polymorphism (SNP) discovery resulted in 3,537,794 SNP calls with 29,184 SNPs identified in coding regions, where 106 were nonsense and 259 were categorized as having a high-impact effect. The homo/hetero zygosity (1,415,123∶2,122,671 or 1∶1.5) and transition/transversion ratios (2,383,204∶1,154,590 or 2.06∶1) were within expected limits. Of the identified SNPs, 480,396 were potentially novel with 2,925 in coding regions, including 48 nonsense and 95 high-impact SNPs. Functional analysis of novel high-impact SNPs revealed various interaction networks, notably involving hereditary and neurological disorders or diseases. Assembly results indicated 713,640 indels (1∶1.09 insertion/deletion ratio), ranging from -52 bp to 34 bp in length and causing about 180 codon insertion/deletions and 246 frame shifts. Using paired-end- and read-depth-based methods, we discovered 9,109 structural variants and compared our variant findings with other populations. Our results suggest that whole genome sequencing is a valuable tool for understanding variations in the human genome across different populations. Detailed analyses of genomes of diverse origins greatly benefits research in genetics and medicine and should be conducted on a larger scale.
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Affiliation(s)
- Haluk Dogan
- Department of Genetics and Bioengineering, Istanbul Bilgi University, Istanbul, Turkey
| | - Handan Can
- Department of Genetics and Bioengineering, Istanbul Bilgi University, Istanbul, Turkey
| | - Hasan H. Otu
- Department of Genetics and Bioengineering, Istanbul Bilgi University, Istanbul, Turkey
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15
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Tekok Kiliç A, Elmastas-Dikec B, Can H. [Evaluation of visual-motor integration functions in children between 6-15 years of age]. Turk Psikiyatri Derg 2010; 21:97-104. [PMID: 20514560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
OBJECTIVE Visual-motor integration skills are considered an essential domain of clinical and psycho-educational assessment. The goal of the present investigation is to provide the Turkish norms for the Beery-Buktenica Developmental Visual-Motor Integration Test (VMI-4th) for children and adolescents between the ages of 6-15 years as part of a comprehensive neuropsychological test battery. METHOD A total of 1887 children from elementary and high schools in the city of Bursa were recruited for this study. From this sample 44 children were re-tested 3-4 weeks following the first administration for test-retest reliability. RESULTS Findings showed clear developmental trajectories in visual-motor integration skills. Significant performance increments were observed in six month intervals for ages 6 and 7. Starting from age 8, norms were established for each age group separately. Girls and boys performed similarly on the VMI-4. Test- retest correlation was modest but within an acceptable range. CONCLUSION The age-based norms established for the VMI-4 in this study can be used to assess children between the ages of 6-15 years as part of a clinical neuropsychological and a psycho-educational assessment. The mean VMI scores presented in this study represent performance of children in middle and middle-upper socio-economic status and may not represent the normal performance range of children from lower SES.
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Affiliation(s)
- Ayda Tekok Kiliç
- Brock University, Child and youth Studies Department, St Catharines, Canada.
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16
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Can H, Dikec BE, Karakas S. University students in two distinct branches show performance differences on the Mangina-Test scores. Int J Psychophysiol 2008. [DOI: 10.1016/j.ijpsycho.2008.05.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Gantert D, Can H, Dambowy M, Maurer W. Dyspareunie nach TVT-O®? Eine Patientenbefragung. Geburtshilfe Frauenheilkd 2008. [DOI: 10.1055/s-2008-1075784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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18
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Jones J, Otu HH, Grall F, Spentzos D, Can H, Aivado M, Belldegrun AS, Pantuck AJ, Libermann TA. Proteomic identification of interleukin-2 therapy response in metastatic renal cell cancer. J Urol 2007; 179:730-6. [PMID: 18082202 DOI: 10.1016/j.juro.2007.09.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2007] [Indexed: 11/28/2022]
Abstract
PURPOSE To detect a predictive protein profile that distinguishes interleukin-2 therapy responders and nonresponders among patients with metastatic renal cell carcinoma we used surface-enhanced laser desorption/ionization time-of-flight mass spectrometry. MATERIALS AND METHODS Protein extracts from 56 patients with metastatic clear cell patients renal cell carcinoma obtained from radical nephrectomy specimens before interleukin-2 therapy were applied to protein chip arrays of different chromatographic properties and analyzed using surface-enhanced laser desorption/ionization time-of-flight mass spectrometry. A class prediction algorithm was applied to identify a subset of protein peaks with expression values associated with interleukin-2 response status. Multivariate analysis was performed to assess the association between the proteomic profile and interleukin-2 response status, controlling for the effect of lymphadenopathy. RESULTS From 513 protein peaks we discovered a predictor set of 11 that performed optimally for predicting interleukin-2 response status with 86% accuracy (Fisher's p <0.004, permutation p <0.01). Results were validated in an independent data set with 72% overall accuracy (p <0.05, permutation p <0.01). On multivariate analysis the proteomic profile was significantly associated with the interleukin-2 response when corrected for lymph node status (p <0.04). CONCLUSIONS We identified and validated a proteomic pattern that is an independent predictor of the interleukin-2 response. The ability to predict the probability of the interleukin-2 response could permit targeted selection of the patients most likely to respond to interleukin-2, while avoiding unwanted toxicity in patients less likely to respond. This proteomic predictor has the potential to significantly aid clinicians in the decision making of appropriate therapy for patients with metastatic renal cell carcinoma.
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Affiliation(s)
- Jon Jones
- Beth Israel Deaconess Medical Center Genomics Center and Dana Farber/Harvard Cancer Center Cancer Proteomics Core, Boston, Massachusetts, USA
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19
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Ramlawi B, Otu H, Rudolph JL, Mieno S, Kohane IS, Can H, Libermann TA, Marcantonio ER, Bianchi C, Sellke FW. Genomic expression pathways associated with brain injury after cardiopulmonary bypass. J Thorac Cardiovasc Surg 2007; 134:996-1005. [PMID: 17903520 DOI: 10.1016/j.jtcvs.2007.01.096] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2006] [Revised: 01/16/2007] [Accepted: 01/29/2007] [Indexed: 11/22/2022]
Abstract
OBJECTIVES Neurologic injury after cardiac surgery, often manifested as neurocognitive decline, is a common postoperative complication without clear cause. We studied acute variations in gene-expression profiles of patients with neurocognitive decline (NCD group) compared with those without neurocognitive decline (NORM group) after cardiopulmonary bypass. METHODS Forty-two patients undergoing coronary artery bypass grafting, valve procedures, or both by using cardiopulmonary bypass were administered a validated neurocognitive battery preoperatively and postoperatively at day 4. Neurocognitive decline was defined as 1 standard deviation from baseline on 25% or greater of tasks. Whole-blood mRNA was isolated preoperatively and at 6 hours after surgical intervention for fold-change calculation. Relative gene expression in the NCD versus the NORM group was assessed by using Affymetrix GeneChip U133 Plus 2.0 (>40,000 genes) from mRNA samples collected. Differential expression, clustering, gene ontology, and canonical pathway analysis were performed. Validation of microarray gene expression was performed with SYBR Green real-time polymerase chain reaction. RESULTS Patients with neurocognitive decline (17/42 [40.5%] patients) were associated with a significantly different gene-expression response compared with that of healthy patients. Compared with preoperative samples, 6-hour samples had 531 upregulated and 670 downregulated genes uniquely in the NCD group compared with 2214 upregulated and 558 downregulated genes uniquely in the NORM group (P < .001; lower confidence bound, > or =1.2). Compared with patients in the NORM group, patients with neurocognitive decline had significantly different gene-expression pathways involving inflammation (including FAS, IL2RB, and CD59), antigen presentation (including HLA-DQ1, TAP1, and TAP2), and cellular adhesion (including ICAM2, ICAM3, and CAD7) among others. CONCLUSIONS Patients with neurocognitive decline have inherently different genetic responses to cardiopulmonary bypass compared with those of patients without neurocognitive decline Genetic variations in inflammatory, cell adhesion, and apoptotic pathways might be important contributors to the pathophysiology of neurologic injury after cardiopulmonary bypass and could become a target for prevention and risk stratification.
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Affiliation(s)
- Basel Ramlawi
- Division of Cardiothoracic Surgery, Beth Israel Deaconess Medical Center, Boston, Mass 02215, USA
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20
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Otu HH, Naxerova K, Ho K, Can H, Nesbitt N, Libermann TA, Karp SJ. Restoration of Liver Mass after Injury Requires Proliferative and Not Embryonic Transcriptional Patterns. J Biol Chem 2007; 282:11197-204. [PMID: 17227769 DOI: 10.1074/jbc.m608441200] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Normal adult liver is uniquely capable of renewal and repair after injury. Whether this response represents simple hyperplasia of various liver elements or requires recapitulation of the genetic program of the developing liver is not known. To study these possibilities, we examined transcriptional programs of adult liver after partial hepatectomy and contrasted these with developing embryonic liver. Principal component analysis demonstrated that the time series of gene expression during liver regeneration does not segregate according to developmental transcription patterns. Gene ontology analysis revealed that liver restoration after hepatectomy and liver development differ dramatically with regard to transcription factors and chromatin structure modification. In contrast, the tissues are similar with regard to proliferation-associated genes. Consistent with these findings, real-time polymerase chain reaction showed transcription factors known to be important in liver development are not induced during liver regeneration. These three lines of evidence suggest that at a transcriptional level restoration of liver mass after injury is best described as hepatocyte hyperplasia and not true regeneration. We speculate this novel pattern of gene expression may underlie the unique capacity of the liver to repair itself after injury.
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Affiliation(s)
- Hasan H Otu
- Department of Medicine, Genomics Core, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA
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21
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Can H, Dambowy M, Maurer W. Erste Ergebnisse zur Verwendung von Prolene-MESH (Prolift, Gynecare) bei Rezidivdescensusoperationen. Geburtshilfe Frauenheilkd 2007. [DOI: 10.1055/s-2007-983686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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22
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Otu HH, Can H, Spentzos D, Nelson RG, Hanson RL, Looker HC, Knowler WC, Monroy M, Libermann TA, Karumanchi SA, Thadhani R. Prediction of diabetic nephropathy using urine proteomic profiling 10 years prior to development of nephropathy. Diabetes Care 2007; 30:638-43. [PMID: 17327333 DOI: 10.2337/dc06-1656] [Citation(s) in RCA: 101] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE We examined whether proteomic technologies identify novel urine proteins associated with subsequent development of diabetic nephropathy in subjects with type 2 diabetes before evidence of microalbuminuria. RESEARCH DESIGN AND METHODS In a nested case-control study of Pima Indians with type 2 diabetes, baseline (serum creatinine <1.2 mg/dl and urine albumin excretion <30 mg/g) and 10-year urine samples were examined. Case subjects (n = 31) developed diabetic nephropathy (urinary albumin-to-creatinine ratio >300 mg/g) over 10 years. Control subjects (n = 31) were matched to case subjects (1:1) according to diabetes duration, age, sex, and BMI but remained normoalbuminuric (albumin-to-creatinine ratio <30 mg/g) over the same 10 years. Surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF MS) was performed on baseline urine samples, and training (14 cases:14 controls) and validation (17:17) sets were tested. RESULTS At baseline, A1C levels differed between case and control subjects. SELDI-TOF MS detected 714 unique urine protein peaks. Of these, a 12-peak proteomic signature correctly predicted 89% of cases of diabetic nephropathy (93% sensitivity, 86% specificity) in the training set. Applying this same signature to the independent validation set yielded an accuracy rate of 74% (71% sensitivity, 76% specificity). In multivariate analyses, the 12-peak signature was independently associated with subsequent diabetic nephropathy when applied to the validation set (odds ratio [OR] 7.9 [95% CI 1.5-43.5], P = 0.017) and the entire dataset (14.5 [3.7-55.6], P = 0.001), and A1C levels were no longer significant. CONCLUSIONS Urine proteomic profiling identifies normoalbuminuric subjects with type 2 diabetes who subsequently develop diabetic nephropathy. Further studies are needed to characterize the specific proteins involved in this early prediction.
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Affiliation(s)
- Hasan H Otu
- Genomics Center and DF/HCC Cancer Proteomics Core, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
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Kocabas AM, Crosby J, Ross PJ, Otu HH, Beyhan Z, Can H, Tam WL, Rosa GJM, Halgren RG, Lim B, Fernandez E, Cibelli JB. The transcriptome of human oocytes. Proc Natl Acad Sci U S A 2006; 103:14027-32. [PMID: 16968779 PMCID: PMC1599906 DOI: 10.1073/pnas.0603227103] [Citation(s) in RCA: 155] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2006] [Indexed: 11/18/2022] Open
Abstract
The identification of genes and deduced pathways from the mature human oocyte can help us better understand oogenesis, folliculogenesis, fertilization, and embryonic development. Human metaphase II oocytes were used within minutes after removal from the ovary, and its transcriptome was compared with a reference sample consisting of a mixture of total RNA from 10 different normal human tissues not including the ovary. RNA amplification was performed by using a unique protocol. Affymetrix Human Genome U133 Plus 2.0 GeneChip arrays were used for hybridizations. Compared with reference samples, there were 5,331 transcripts significantly up-regulated and 7,074 transcripts significantly down-regulated in the oocyte. Of the oocyte up-regulated probe sets, 1,430 have unknown function. A core group of 66 transcripts was identified by intersecting significantly up-regulated genes of the human oocyte with those from the mouse oocyte and from human and mouse embryonic stem cells. GeneChip array results were validated using RT-PCR in a selected set of oocyte-specific genes. Within the up-regulated probe sets, the top overrepresented categories were related to RNA and protein metabolism, followed by DNA metabolism and chromatin modification. This report provides a comprehensive expression baseline of genes expressed in in vivo matured human oocytes. Further understanding of the biological role of these genes may expand our knowledge on meiotic cell cycle, fertilization, chromatin remodeling, lineage commitment, pluripotency, tissue regeneration, and morphogenesis.
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Affiliation(s)
| | - Javier Crosby
- Unidad de Medicina Reproductiva, Clínica Las Condes, Lo Fontecilla 441, Las Condes, Santiago 759 1040, Chile
| | - Pablo J. Ross
- *Cellular Reprogramming Laboratory, Department of Animal Science and
| | - Hasan H. Otu
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115
- Department of Genetics and Bioengineering, Yeditepe University, Istanbul 34755, Turkey; and
| | - Zeki Beyhan
- *Cellular Reprogramming Laboratory, Department of Animal Science and
| | - Handan Can
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115
- Department of Genetics and Bioengineering, Yeditepe University, Istanbul 34755, Turkey; and
| | | | | | - Robert G. Halgren
- *Cellular Reprogramming Laboratory, Department of Animal Science and
| | - Bing Lim
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115
- Genome Institute of Singapore, Singapore 138672
| | - Emilio Fernandez
- Unidad de Medicina Reproductiva, Clínica Las Condes, Lo Fontecilla 441, Las Condes, Santiago 759 1040, Chile
| | - Jose Bernardo Cibelli
- *Cellular Reprogramming Laboratory, Department of Animal Science and
- **Physiology Department, Michigan State University, East Lansing, MI 48824
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Becker C, Fleischer S, Hack A, Hinderer J, Horn A, Scheible S, Can H, Muche R, Gebhard F, Kinzl L, Nikolaus T. [Disabilities and handicaps due to hip fractures in the elderly]. Z Gerontol Geriatr 1999; 32:312-7. [PMID: 10552169 DOI: 10.1007/s003910050122] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE to examine mortality, mobility, pain, institutionalization rates six month after hip fractures. DESIGN observational study, non-selected consecutive patients, time-set protocol. SETTING urban area (population n = 116,5000), five hospitals. PARTICIPANTS hip fracture patients (n = 214), age 65 + years (mean 82.4 years). MEASUREMENTS age, gender, prefracture status, operative procedures, complications, comorbidity, cognition (MMSE), depression (GDS), fear of falling, ADL (Barthel) and mobility and pain status (SAHFE protocol). RESULTS the incidence for this age group was 636.9/100,000, 31.8% were institutionalized elderly. 84% of the patients were female. Pre-existing comorbidity showed a high prevalence of neurodegenerative (cognitive deficits 53. 6%, Parkinson's disease/syndrome 11.2%) and cerebrovascular diseases (16.8%). Six month postfracture, the mortality was 17.6%. From those surviving 76.2% did walk indoors, 58.5% did also walk outdoors. Independent to dress were 54.6%. Severe pain was reported by 10.2%, whereas 36.9% described no pain. The institutionalization rate at six month was 19.0%. CONCLUSIONS the study showed considerable mortality, a significant loss in function and social disintegration. Considerable differences were observed for subgroups of patients. Future treatment should focus on risk stratification and include postdischarge training programs. Moreover, preventive strategies should be implemented for high risk groups, such as ambulating patients with a history of stroke. Parkinson's disease and syndrome, dementia and nursing home residents.
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Affiliation(s)
- C Becker
- Bethesda Geriatrische Klinik, Akademisches Krankenhaus der Universitätsklinik Ulm, Geriatrisches Zentrum Ulm/Alb-Donau, Zollernring 26-28, D-89073 Ulm.
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Olmez A, Can H, Ayhan H, Okur H. Effect of an alum-containing mouthrinse in children for plaque and salivary levels of selected oral microflora. J Clin Pediatr Dent 1998; 22:335-40. [PMID: 9796505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
The purpose of the study was to assess the effect of daily supervised rinsing with a specially formulated, alum-containing mouthrinse on plaque and salivary levels of S. mutans, S. mitis and S. salivarius in caries susceptible children (12-14 years old) and to monitor the effect on the oral tissues and acceptability to subjects. Forty-five subjects were divided into 3 groups (n = 15). Group I received an experimental group with a mouthrinse containing hydrated aluminum potassium sulfate (alum). Group 2 received a vehicle control group containing the same mouthrinse, but without alum and Group 3 had a treatment control with distilled water. All subjects continued normal oral hygiene habits during the study. Salivary and plaque levels were obtained at base line, 2 weeks and 4 weeks and evaluated for microbiologic procedures. Also, potential adverse effects on oral tissues were performed during every visit. The mean plaque and salivary levels of oral Streptococcus (S. mutans, S. mitis, S. salivarius) for the experimental group were significantly reduced after 2 weeks and 4 weeks compared with baseline. The plaque and salivary levels of oral Streptococcus of experimental and vehicle control group differed statistically from each other after 4 weeks, with the strongest reduction in the experimental group and there was statistically difference between treatment control and vehicle control or experimental groups at each time interval. No evidence of deleterious effects to the oral tissues was observed. Daily use of an alum-containing mouthrinse was safe and produced significant reduction effect on plaque and salivary levels of oral Streptococcus and can be used in children for the preventive dentistry.
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Affiliation(s)
- A Olmez
- Gazi University, Faculty of Dentistry Department of Pedodontics, Turkey
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Abstract
Fluoride release from six light-activated restorative materials, including two resinmodified glass-ionomers, two composites, and two compomers, was evaluated and compared with one conventional acid-based glass-ionomer cement. The amount and rate of release varied among the tested materials. Both resin-modified glass-ionomers and the conventional acid-base glass-ionomer cements released more fluoride then the composites and compomers (p < 0.05). Additionally, composite materials released less fluoride than compomer materials (p < 0.05). Release of fluoride by the tested materials showed a significant decrease after all the tested time intervals.
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Affiliation(s)
- O Bala
- Department of Endodontics and Operative Dentistry, Gazi University, Faculty of Dentistry, Ankara, Turkey
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